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Jurnal Teknik Sipil
Published by Universitas Sebelas Maret
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Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
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Articles 91 Documents
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THE LEVELS OF SEWERAGE SYSTEM PERFORMANCEIN ARD ZWAWA ALBAHRIA, BENGHAZI CITY,LIBYA Taher, Hamza Hassan; Suprapto, Mamok; Astuti, Winny
Jurnal Teknik Sipil Vol 2, No 1 (2014): Jurnal Teknik Sipil
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Abstract             Sewer systems are prone to damages due to aging, traffic, geological change, to name a few. The sewer system is very important in the life and any malfunction in a sewer system disrupts the daily life activities within the relevant region. This research is proposed some solution in order to the assessment of the level to performance the sewage network in Ard Zwawa Albahria, East Benghazi City. There are many problem in Ard Zwawa Albahria sometimes flood and also close to some of manholes.The objectives of this research are to observe and to analysis the levels of sewerage system performance in Ard Zwawa Albahria, East Benghazi City- Libya and the effect of the system’s performance to the decision making process for rehabilitation and maintenance. Using performance Indices and Standard of Scoring Matric, this research uses some formulas for calculation to evaluate the components of sewage system based on standard called Libyan specifications. The level of sewage system performance is 3.29 .it means that the sewage system is in a good condition. The system only needs rehabilitation and maintenance. The spatial coverage of existing sewers system is not good enough, because there are some places which don’t have network of sewer system. The general capacity of sewage system network is good enough, because it can service the quantity of flowing sewage water. The length of pipe equals 3984.27 meterKeywords: performance indices ,sewerage system, infrusrauction, level of assessment .
PRIORITAS PENANGANAN JALAN DI KABUPATEN BENGKULU UTARA Widyasari, Inneke; Purwana, Yusep Muslih
Jurnal Teknik Sipil Vol 3, No 1 (2015): Jurnal Teknik Sipil
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A B S T R A KKebijakan otonomi daerah di Indonesia yang memberikan tanggung jawab penyelenggaraan dalam pemeliharaan jalan regional kepada pemerintah daerah. Pemerintah Kabupaten Bengkulu Utara telah mengadakan berbagai usaha untuk melaksanakan otonomi daerah sebaik mungkin, salah satunya adalah perbaikan prasarana transportasi jalan. Penentuan skala prioritas penanganan jalan kabupaten berdasarkan SK.No.77, Dirjen Bina Marga, Tahun 1990, yaitu berdasarkan data Lalu Lintas Harian Rata (LHR) dan Nilai Net Present Value (NPV) saja. Hal ini kurang tepat karena kompleksnya permasalahan di lapangan yang dipengaruhi oleh berbagai aspek seperti: kondisi jalan, lalu lintas harian rata-rata, kebijakan, dana anggaran, dan aspek tata guna lahan. Sehingga diperlukan metode yang dapat menampung semua aspek tersebut dan dapat mengantisipasi ketimpangannya.Metode penentuan skala prioritas penanganan jalan di Kabupaten Bengkulu Utara menggunakan Metode SK. No. 77 Dirjen Bina Marga Tahun 1990 dan Metode Analytical Hierarchy Process (AHP). Kemudian kedua metode tersebut dibandingkan untuk mendapatkan kelebihan dan kekurangan masing-masing metode. Hasil penelitian menunjukkan bahwa skala prioritas penanganan jalan di Kabupaten Bengkulu Utara dengan Metode AHP menghasilkan prioritas utama untuk Jalan Karang Pulau – Bukit Berlian, Jalan Giri Kencana – D3 prioritas kedua, Jalan Lb. Durian – Padang Bertuah prioritas ketiga. Sedangkan skala prioritas penanganan jalan di Kabupaten Bengkulu dengan Metode SK. No. 77 Tahun 1990 menghasilkan prioritas utama untuk Jalan Bundaran-Pasar Purwodadi, Jalan Sp.Bundaran-Kantor Camat prioritas kedua, Jalan Tugu Jadi-Karang Suci prioritas ketiga. Berdasarkan hasil tersebut dapat ditarik kesimpulan bahwa perolehan urutan prioritas yang menggunakan perhitungan SK No. 77 Tahun 1990 akan berubah posisi bila dihitung dengan menggunakan bobot yang diperoleh pada perhitungan metode AHP. Perubahan yang terjadi adalah urutan menggunakan metode SK No. 77 Tahun 1990 berada di atas pada perhitungan pembobotan kriteria, hal ini terjadi karena beberapa hal seperti: a)Jumlah penilaian pada kondisi jalan maksimal, b)Jumlah LHR tinggi, c)Nilai NPV tinggi, d)Perolehan kebijakan tinggi, dan e)Pemanfaatan tata guna lahan tinggi. Kata kunci : SK.No.77 Dirjen Bina Marga Tahun 1990, Analytical Hierarchy Process, Skala prioritan penanganan jalan
DESIGN AND PROPERTIES OF ASPHALT CONCRETE MODIFIED WITH CRUMB RUBBER AT HOT AND ARID REGION A. M. Hmade1, Mohmed Alshekh; Setyawan, Ary; Purwana, Yusep Muslih
Jurnal Teknik Sipil Vol 3, No 1 (2015): Jurnal Teknik Sipil
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AbstractMany researchers have been conducted in finding alternative materials in order to be used as a modifier in asphalt mixture for the purpose of improving its properties. This thesis presents a study of laboratory evaluation on the performance of hot-mixed asphalt (HMA) using crumb rubber as an additive. It is noted that crumb rubber was identified to have potency as a modifier in HMA due to the elastic behavior exposed by the rubber particles, especially in reducing the rutting potential. In this research, fine crumb rubber Shred (2.36-0.85 mm) obtained by ambient-temperature grinding process from discarded truck tires, was used to modify asphalt concert. The fine crumb rubber with different contents, i.e. 2.5%, 5%, 7.5% and 10%, was incorporated into the mixture by using dry process method. The Marshal properties, Unconfined Compressive Strength (UCS), Indirect Tensile Strength test (ITS) and Indirect Tensile Strength Modulus (ITSM), Permeability were conducted. The result showed that marshal stability, Marshal Quotient, Voids in Mix (VIM) and Voids in mineral aggregate (VMA) decreased with the increasing crumb rubber modifier. However, Marshal Flow and Void filled with asphalt (VFWA) increased when crumb rubber modifier was increased. All the values of unconfined compressive strength (UCS) y=-346.6x+5093at 30C?, Indirect Tensile Strength test (ITS) Y=-6.248x+404.9 with 0%CR, Y=-4.051x+254.8 with 2.5%CR, Y=-3.674x+223.5 with 5.0%and y=-2.820x+173.4 with 7.5%CRand Indirect Tensile Strength Modulus (ITSM) Y=-29000X²-4259+682.7 at 40C°, Permeability decreased with an increase in crumb rubber modifier. Therefore, Crumb rubber could not let commented as aggregate substitution for flexible asphalt concrete at hot and arid region.Keywords: Asphalt concrete Crumb Rubber modifier Marshall, ITS, ITSM, UCS, PermeabilityTest.
EVALUASI KERENTANAN BANGUNAN DENGA PENGUJIAN MIKROTREMOR DAN KINERJA DINAMIK BANGUNAN TERHADAP GEMPA DISERTAI METODE REHABILITASI BANGUNAN RUSUNAWA LUBUK BUAYA PADANG Hernanti, Hanna Yuni; Kristiawan, Steafanus Adi; As’ad, Sholihin
Jurnal Teknik Sipil Vol 1, No 1 (2013): Jurnal Teknik Sipil
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AbstrakLatar Belakang: Gempa bumi yang terjadi pada 30 September 2009 di Padang menimbulkan kerusakan struktural pada Rusunawa Lubuk-Buaya Padang. Untuk mengetahui performa bangunan maka dilakukan evaluasi kondisi eksisting bangunan. Tujuan penelitian ini adalah adalah untuk mengetahui kerentanan dan kinerja dinamik bangunan yang berkaitan dengan keamanan bangunan eksisting paska gempa dan alternatif rehabilitasi bila diperlukan.Metode: Jenis penelitian ini adalah metode kuantitatif, yaitu dengan analisis data sekunder pengujian lapangan mikrotremor pada 13-18 November 2009 pada empat titik lokasi pada bangunan dan dua titik di permukaan tanah sekitar bangunan yang disertai data teknis dan dokumentasi visual bangunan paska gempa. Hasil filter pengujian mikrotremor dianalisis dengan metode Horizontal-to-vertical spectral ratio (HVSR) sebagai parameter pengukuran kerentanan bangunan. Selanjutnya mengukur kinerja seismik bangunan dengan analisis respon spektrum sesuai SNI 1726:2012. Bangunan yang dinyatakan tidak aman perlu perkuatan (rehabilitasi) terpilih, yaitu dengan teknik perkuatan Tuned Mass Damper (TMD) dan viscous dampers.Hasil: Dari hasil analisis HVSR didapatkan resiko resonansi terjadi pada Tanah-2 dengan frekuensi natural  19,34 rad/detik ? frekuensi natural bangunan  19,53-25.12 rad/detik. Dan hasil indeks kerentanan bangunan (Nakamura) tertinggi pada lantai 3 di 68, 80 mikron (EW). Menurut Keputusan Menteri Negara Lingkungan Hidup No.49 Tahun 1996, frekuensi bangunan dinyatakan tidak aman untuk menerima beban kejut dengan kecepatan di atas 5 mm/detik.Respon seismik bangunan menghasilkan drift maksimum 522,8 mm jauh dari drift ijin  49,23 mm. Sehingga struktur berpotensi tidak stabil dan harus didesain ulang. Perkuatan dengan menggunakan. TMD (MTMD-V-1200 dan MTMD-H-1900) mampu mereduksi drift hingga 50%, namun belum mampu memenuhi drift ijin. Viscous dampers (MHD-250) mampu mereduksi drift hingga 93% dan bangunan stabil. Kata Kunci:  mikrotremor, HVSR, SNI 1726:2012, TMD, Viscous dampers.
KONDISI KEMANTAPAN JALAN BERDASARKAN BEBAN LALU LINTAS DAN KETERSEDIAAN DANA PENANGANAN Hermani, Wahyuningsih Tri; Setyawan, Ary; Yulianto, Budi
Jurnal Teknik Sipil Vol 1, No 1 (2013): Jurnal Teknik Sipil
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AbstrakSatuan Kerja Non Vertikal Tertentu (SNVT) Wilayah II Provinsi Jawa Tengah adalah instansi yang menangani jalan strategis nasional Provinsi Jawa Tengah yang mempunyai daya saing tinggi dalam keselamatan dan keamanan. Penelitian ini bertujuan untuk mengetahui kondisi jalan, besar beban yang terjadi pada jalan,  hubungan antara pertumbuhan lalu lintas dengan kondisi jalan serta kebijakan Bina Marga dalam mengatur ketersediaan dana untuk pencapaian kondisi jalan mantap. Jenis penelitian ini diskriptif yaitu dengan melakukan perbandingan data kondisi permukaan jalan menggunakan NAASRA Roughness-meter untuk menganalisa peningkatan/penurunan kondisi jalan antara Tahun 2008–2013. Beban lalu lintas jalan dihitung dari data lalu lintas harian rata-rata (LHR). Regulasi kebijakan Bina Marga untuk penentuan prioritas penanganan jalan berdasarkan ketersediaan dana, kertas kerja RKA-KL dan rincian pekerjaan Tahun 2008-2013.. Kondisi jalan mantap meningkat dari Tahun 2008 sebesar 78,23% menjadi 97,0% pada Tahun 2013 dengan kecenderungan yaitu y= 139,87*0,01^(1/x). IRI menurun dari Tahun 2008 sebesar 5,66 menjadi 3,91 pada Tahun 2013 dengan kecenderungan yaitu y= 1,847*e^(9,136/x). Beban jalan yang terjadi berdasarkan kondisi riil di lapangan Tahun 2008 mencapai 484.631 standard axel meningkat pada Tahun 2013 menjadi 661.575 standard axel dengan kecenderungan yaitu y= 274,82e^(0,069x). Pertumbuhan lalu lintas meningkat rata-rata 1,07% per tahun. Ketersediaan dana meningkat dari Tahun 2008 sebesar Rp 185.059.648.000,00 menjadi Rp 471.865.926.000,00 pada Tahun 2013. Kecenderungan kemantapan jalan terhadap penyerapan dana yaitu y= 69,96*1,0^x.Kata kunci: roughness, jalan, pemeliharaan, kebijakan.
SHRINKAGE BEHAVIOR OF STEEL FIBER REINFORCED CONCRETE ON SANDWICH LAYER CONCRETE Al Mahdi Jibril, Ramadhan; Purwana, Yusep Muslih
Jurnal Teknik Sipil Vol 2, No 2 (2014): Jurnal Teknik Sipil
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AbstractShrinkage of concrete causes a serious problem in concrete. If concrete is restrained from shrinking, tensile stresses develop and it may exceed the tensile strength of concrete which causes the concrete cracks. One possible method to control or reduce the adverse effects of cracking due to shrinkage in concrete structures is the addition of fiber in the concrete. Steel fiber can improve structural strength, ductility, reduce crack widths and control the crack. In sandwich layer where its material comprises of steel fiber reinforced concrete and some other by plain concrete. The shrinkage behavior has been considerably different compared to fiber reinforced concrete and plain concrete. Therefore this study investigates the behavioral of shrinkage on the steel fiber reinforced concrete on sandwich layer concept.The test specimens were made by steel fiber dosages of 10kg/m3, 30kg/m3, 50kg/m3, 80kg/m3 and 100kg/m3 and some others for sandwich layer specimen with similar fiber dosages combined with plain concrete. The specimen form was cylinder 5 cm in diameter and 27 cm in high for drying shrinkage test. All samples were placed in open air on ambient temperature environment. The shrinkage was recorded on 1 day to 56 days. The shrinkage prediction for three year or 1000 days was also calculated. Both recorded and predicted shrinkage were then compared..The test result showed that plain concrete experienced the highest drying shrinkage and the addition of steel fiber reduced the drying shrinkage that occurred at concrete. The greater amount of fiber contained in the concrete, the lower occurrence of drying shrinkage. The shrinkage on sandwich samples recorded moderate compared to plain concrete, however this shrinkage is higher compared to samples of fully fiber reinforced concrete at the same fiber dosage. The three group of samples; steel fiber reinforced concrete, sandwich concrete and plain concrete showed the same trend of shrinkage curves following the time of hydration. The presence of steel fiber in concrete can effectively hinder drying shrinkage and affected the crack that can reduce and control the shrinkage of concrete.      Keyword: Shrinkage behavior, shrinkage prediction, SFRC, sandwich concrete, plain concrete, steel fiber..
TOLAK UKUR KINERJA TANGGUL BERDASARKAN PENILAIAN KEANDALAN, PENILAIAN PERMUKAAN TANGGUL DAN STABILITAS TANGGUL (Studi Kasus: Ruas Jurug Mojo, Surakata) Hermawan, Chitra; Suprapto, Mamok; As’ad, Sholihin
Jurnal Teknik Sipil Vol 2, No 2 (2014): Jurnal Teknik Sipil
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ABSTRACT Flood is known as a disaster that usually comes suddenly, and therefore, people are not prepared. As a result, it causes a dead loss, both human and material. In order to anticipate flood, some dikes have been built.Bengawan Solo dike has changed through time. Damages along the dike have been identified and followed-up by conducting some improvements to make it function well. However, since the repairs are carried out based on the occurrence of landslide or burst, there are many portions of the dike that are damaged but receive no rehabilitation. In fact, in some portions of the dike crossing densely populated settlements, there are many buildings cutting through the outside part of the dike base. Furthermore, portions of the dike in that area have been transformed to street with uncontrolled load. For example, it is found that some vehicles loading construction materials passing on the dike. But, in fact, this sort of loading has not been predicted in the planning. Hence, it is important to foreknow the benchmark of dike performance to assess the performance of dike before landslide or burst occurring.This research was conducted to the Jurug-Mojo portion of Bengawan Solo dike. It is 1.317 m long and is divided into 13 portions, each of which is 100 m long. The parameters applied in this research were cross-section, dike elevation and data about land, while the variables were debit, gravity acceleration, water surface elevation, soil pore index, shearing force, specific weight, and friction angle. There were 3 (three) methods proposed to assess the benchmark of the dike performance, including reliability assessment, dike surface assessment (PCI Mmethod) and dike stability assessment (Bishop Mmethod).The findings of the research are as follows. The maximum debit that can be embanked by the dike is 1,489 m3/s; the reliability index is 0.675; the PCI index is 59.4 (good); the dike stability index before overtopping is 2.771 (stable); the dike stability index when overtopping is 1.075 (unstable), the water stability index when lowering 1 m is 1.775 (stable). Keywords: dike, reliability index, stability, PCI (Pavement Condition Index) 
NFLUENCE OF USING NON-STANDARD SPECIMEN ON COMPRESSIVE STRENGTH OF NORMAL AND HIGH STRENGTH CONCRETE Esbata, Abdulati Mohamed; Kristiawan, Stefanus Adi; As’ad, Sholihin
Jurnal Teknik Sipil Vol 2, No 2 (2014): Jurnal Teknik Sipil
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Abstract Compressive strength of concrete is one of the most important  test  for  construction properties for quality control of concrete and design new constructions, there are different molds that are used for casting concrete specimen during the concrete works according to various standards at different countries. On the other hand, it is known that different shapes and sizes of concrete specimen can cause differences in the results of compressive strength. In this study the influence of specimen sizes and shapes on compressive strength of normal and high strength concrete are investigated using experimental study. The experimental study was conducted for six different specimen types cube 150 mm, cube 100 mm, cube 75 mm, cylinder Ø150x300 mm, Ø100x200 mm, Ø75x150 mm. At six different concrete strength level was 20,30,40,50,60 and 70 MPa according to standard cube specimen and tested at 28 Days of age. For The experimental study, hardened density, non-destructive tests (Rebound hammer and UPV), compressive strength and splitting tensile strength for different concrete strength level were performed and some analyses were done to obtain conversion factors and some relations between these tests. The results of analyses indicate that for all testing, there is a bigger influence of variation of size and shape of the specimens, by changing the compressive strength level. The compressive strength increases as the specimen size decreases.. Also The compressive strength of  cube 150 mm is generally higher than strength cylinder Ø150x300 mm and The conversion factors of compressive strength between is varied from 0.76 to 0.88 for the designed cube compressive strength of  20 to 70 MPa. The conversion factors of compressive strength between standard and non-standard specimen at different concrete strength at 28 days to equivalent 150 mm standard cube specimen had been determined and presented in table 4.7.  The correlation between (split tensile test / Schmidt hammer test/ UPV test) of standard specimen 150 x 150 mm cube to compressive strength of non-standard specimen had been determined. Keywords: compressive strength level, influence of specimen sizes and shapes, conversion factors, splitting tensile strength, Schmidt hammer test, UPV.
COMPRESSIVE STRENGTH AND MODULUS OF ELASTICITY OF STEEL FIBER REINFORCED CONCRETE (SFRC) UNDER DIFFERENT TEMPERATURE CONDITIONS Akesh, Sami Saleem; Sambowo, Kusno Adi; As’ad, Sholihin
Jurnal Teknik Sipil Vol 2, No 1 (2014): Jurnal Teknik Sipil
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AbstractSFRC consists of concrete matrix with steel fibers that serve as reinforcement, which is useful to reduce the brittle nature of concrete. The use of steel fibers in this study aimed to determine the effect of steel fibers in the concrete compressive strength and modulus of elasticity. Temperature can affect properties of concrete, then in addition to determine the effect of steel fiber will do heat treatment at a certain temperature.This research was experimental methods and used cylindrical specimen with a diameter of 15 cm and a high of 30 cm. Specimens were 75 samples. Samples were SFRC containing fibers of 0%, 0.75% and 1:25%. Some samples were exposed in various temperature, ambient temperature, 200?C, 400?C, 600?C and 800?C. Compressive strength and modulus of elasticity were tested at 28 days and soon after elevated temperature exposed on samples.The test result that the compressive strength of concrete with steel fiber addition decreased compared to plain concrete. The modulus elasticity of samples increases with the amount of steel fibers in the concrete mix. The SFRC 0%, 0.75% and 1:25% compressive strength values are 39.066 MPa, 28.875 MPa and 31.705 MPa respectively while the modulus of elasticity 6322.353 MPa, 7697.876 MPa and 8873.661 Mpa respectively. After the temperature treatment of the specimen, the results of which are shown in the increasing temperature of the concrete, the compressive strength and modulus of elasticity decreased significantly. The highest compressive strength at temperatures of 800?C, shown in plain copkncrete with a value of 16,419 MPa, whereas elastic modulus obtained in 1:25% SFRC with a value of 2015,357 Mpa.Keywords: SFRC, Steel fiber, temperature, compressive strength. Modulus elasticity
THE USE OF PAVEMENT CONDITION INDEX (PCI) AS THE CONSIDERATION OF REHABILITATION PRIORITY M Akash, Faraj Muftah; Setyawan, Ary; Suprapto, Mamok
Jurnal Teknik Sipil Vol 2, No 1 (2014): Jurnal Teknik Sipil
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AbstractHighway is one infrastructure that will accelerate an area’s growth and development and will open social, economic and cultural relationship cros areas Land road is the society vital need in undertaking daily activity therefore the road that can provide good service is very desirable. But, this infrastructure is frequently damaged.this research  conducted  in Tentara pelajar Street of Surakarta with length of 2,200 km aims to assess the road condition using Pavement Condition Index (PCI) method by dividing road into several segments in 50 m interval. Then, each segment of road was observed  and measured to identify  the type of damage existing and was assessed according to PCI method. From the result  of  observation several  damages  were  obtained including alligator cracking, bleeding block  cracking, corrugation, longitudinal and transverse cracking, patching and utility cut patching, potholes, Bleeding, Rutting. This damage only and the repair was done based on the type of damage existing in this road, road improvement was done using Component Analysis Method. The hardening material used was LASTON and then necessary expense budget was also estimated the cost of the necessary repairs and improvement in street in Tentara Pelajar 2013 was Rp. 2.066.094.000,00 Planning additional pavement thickness (Overlay) with component analysis methode using Ms.744 Laston obtained (9.5) cm thickness.     Keywords: Pavement Condition Index , Budget plane

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